Running changes for hexrdgui 0.9.0 compatability

What's Changed

• Create NOTICE by @joelvbernier in #473
• script to calculate pinhole 2theta by @joelvbernier in #474
• added a simple form for pinhole line tth distortion by @joelvbernier in #475
• Add calculating symmetric vectors in cartesian space. by @saransh13 in #476
• Added ability to import HDF5 imageseries with 2-d data by @joelvbernier in #477
• fixed the bad choice of always casting as array by @joelvbernier in #478
• WPPF -- Rietveld fixes by @saransh13 in #479
• add missing colon. by @saransh13 in #481
• Nf chunking by @rachelelim in #469

Full Changelog: 0.9.0...0.9.1